Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 510: | \[{31^{510}-1\over30}\] | 25 × 3 × 5 × 72 × 11 × 19 × 41 × 103 × 331 × 2521 × 17351 × 21821 × 108971 × 934831 × 327412201 × 1961163283 × 232122807601<12> × 391206807721<12> × 880374069121<12> × 3745479278144701<16> × 12939956633160901<17> × 21736504684553261<17> × 2796214962413636917873<22> × 6841661642646463343047<22> × 751670559138758105956097<24> × 195333779873358973907838097<27> × 9282032559881031020831684346151<31> × 261116663697161542351918133573442849307<39> × 292415865518548212725264181682005402545390163298379652017348311<63> × 1245141934790891820186929953481042617404430460698797792065080730109689040939824529361<85> × 9335690884687918789820878424837145419575036232341763910117962625051968596802531164520855175589507839851473974812245528451773288742123014463588090322681241<154> × 1567050165917395584797113237174935924224773849493384273222640073263174609285778383769531714626003369560370710614152588695342329698957621943874418889740247109521<160> |